Question 1
Exposure to which substance protects the mucosal barrier of the stomach?
◦ Prostaglandins
◦ Acetylcholine
◦
Helicobacter pylori◦ Regurgitated bile
Question 2
The ileum and jejunum are suspended by folds of the peritoneum that contain an extensive vascular and nervous network. What are these folds called?
◦ Ligament of Treitz
◦ Mesentery
◦ Auerbach folds
◦ Lamina propria